The proposed plans come after the process was proved to be difficult.
The government plans to negotiate repayment of $600m of value-added tax it withheld from the mining companies in the near future.
Finance minister Alexander Chikwanda was quoted by The Wall Street Journal as saying, "Government has a duty to revisit practices which impinge negatively on the efficient functioning of the economy.
"The mining sector is critical to the economy."
Zambia imposed the rules last year as part of its efforts to improve revenue collections from the copper sector; however, the companies argued that it was difficult as it involves documentation from importers outside the country’s jurisdiction and sometimes the minerals are sold through middlemen.
For the first half of 2014, copper production in Zambia increased by 16% to 559,117 tons.
